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Standard ball bushings closed

BB4UU - SNR

BB4UU

Closed ball bushings enable precise and low-friction linear movements on self-supporting hardened steel shafts.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
Design typeBBE
Ball bushings categoryStandard ball bushings, closed
StandardJIS dimension
Number of seals2
Material outer cylinder or steel segments100Cr6
Material CagePA
Initial greasingNon/No
d - Internal diameter4 mm
d - Internal diameter tolerance0/-0,008
D - External diameter8 mm
D - External diameter tolerance0/-0,009
L - Length12 mm
L - Length tolerance0/-0,12
Number of ball rows4
Mass0,002 kg
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PRODUCT PERFORMANCE
Cmin0,047 kN
Cmax0,066 kN
C0min0,127 kN
C0max0,18 kN
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature80 °C